The article lists these possibilities:
- Blog From Your Phone
- Free Calls and Texts To Canada
- Free Calls From Your Browser
- Combine Google Voice and Skype
- Add a Voicemail Feature To Your Blog
Then as a bonus there is a link to a 2010 article that provides additional tricks:
- Integrating Google Voice for all mobile calls
- Listening in to your voicemail in real time
- Automatic transcriptions of all voice mails
- Recording phone calls
- Custom greetings for different groups of people
Most of the second group I either use regularly or I knew about, just don’t need.
See the article here: http://www.makeuseof.com/tag/5-awesome-google-voice/
BTW – check out the site itself, there are a number of possible meeting topics here.